AUTHENTIC RECIPE

Frittata di CipolleOnion Frittata

Onion Frittata
Difficulty★★☆☆☆ Prep15 min Cook30 min servings2

An Italian egg dish of onions slowly sautéed to develop sweetness, combined with eggs and baked in the oven. Unlike a French omelet, it is cooked flat and cut into portions to serve.

100/ 100

AUTHENTICITY SCORE

Authenticity Score

This is the standard recipe, exactly as it’s made where it comes from — the highest Authenticity Score possible. Substituting ingredients changes this score; the app shows exactly how, ingredient by ingredient.

Ingredients (2 servings)

  • Eggs4 pieces
  • OnionsThinly slice3 pieces
  • Parmigiano ReggianoGrate30 g
  • Extra virgin olive oil30 ml
  • Fresh thyme3 sprigs
  • Salta little
  • Black peppera little

Method

17 min

Prepare the onions and Parmigiano

  • 1 Finely grate 30 g Parmigiano.
  • 2 Thinly slice 3 onions.
225 min

Caramelize the onions

  • 1 Heat 30 ml olive oil in a frying pan and slowly cook the onions over low heat for 20–25 minutes to caramelize, the process of browning sugars into caramel.
  • 2 Stir occasionally to avoid burning.
33 min

Make the egg mixture

  • 1 Crack the eggs into a bowl, add Parmigiano, thyme, salt and black pepper and beat thoroughly.
45 min

Add the eggs and partly set

  • 1 Once the onions are golden brown, add the egg mixture and cook over low heat until the edges begin to set (4–5 minutes).

Caution

Once the onions are golden brown, add the egg mixture and cook over low heat until the edges begin to set (4–5 minutes).

510 min

Set the surface in the oven

  • 1 Put in an oven preheated to 180°C and bake for 8–10 minutes until the surface sets.

Caution

Put in an oven preheated to 180°C and bake for 8–10 minutes until the surface sets.

65 min

Cool slightly and portion

  • 1 Let the initial heat dissipate, then cut into portions and serve.
  • 2 It is also delicious at room temperature.
A view of Roma, Trastevere
Roma, TrastevereA view of Italy Photo: wiccahwang · CC BY 2.0 (resized; display cropped)

About this dish

Frittata is an egg dish eaten across Italy, though sometimes confused with a French omelet. The main difference is its shape: a frittata is cooked on both sides until done throughout and finished flat like a pie. Because it is delicious cold, it suits picnics and packed lunches.

The most important stage in onion frittata is sautéing. Slowly caramelizing onions over low heat for 20–25 minutes concentrates their sweetness. It becomes a completely different dish from “scrambled eggs with onions” that skip this stage.

Chef Authen

Bring the full course home next weekend.

Bring every dish to the table at its best.

Choose the dishes you want to cook, and Chef Authen handles the shopping list and the day-of schedule. The Tabelia app turns everything from starter to main into one coordinated course in your kitchen.

  • One shopping listBuilt automatically from your menu and any substitutions, ready to check off.
  • One timelineEvery dish’s waiting and cooking time combined into a single schedule.
  • Answers beyond the recipeFrom judging the heat to adapting on the fly, Chef Authen answers with concrete criteria, not guesses.
Download on the App Store